"And this is the will of him who sent me, that I should lose nothing of all that he has given me, but raise [anasteso] it up on the last day" ESV.
John 6:39 says "raise" it on the last day- but John 6:40, 44 and 54 all put "will raise" it.
"anasteso" comes four times in John chapter 6. If one says the same thing 4 times but on one of those occasions say it differently then presumably it is deliberate and to make a particular point.
According to the English-Greek Reverse Interlinear N.T. ESV, the first time, in verse 39, anasteso is aorist, subjunctive, active-"raise".
The next 3 times in verses 40, 44 and 54 it is future, indicative, active-"will raise".
The King James Bible marks out a difference as in v39 is "raise it up again" but in 40, 44 and 54 it is just "raise " without the "again". What insight into "anasteso" is the KJB giving us?
What point is being made by the first of the four being different?